Mobile DNA Elements in Woolly Mammoth Genome Give New Clues to Mammalian Evolution
Drawing of a woolly mammoth
Probing Question: Can a Pandemic be Predicted?
Astronomy Team Probes Edge of Supermassive Black Hole
An artist's depiction of the accretion of a thick ring of dust into a supermassive black hole. The accretion produces jets of gamma rays and X-rays. Credit: ESA / V. Beckmann (NASA-GSFC)
Online System Rates Images by Aesthetic Quality
Scientists Determine the Structure of Highly Efficient Light-Harvesting Molecules in Green Bacteria
The image shows a hot spring in Yellowstone National Park Montana, a site where bacteria containing chlorosomes can be found in the brightly colored mats. Credit: Donald Bryant, Penn State
Center To Investigate Plant Cells for Better Biomass Fuels
Daniel J. Cosgrove
New Gamma-Ray Burst Smashes Cosmic Distance Record
Credit: D. Fox, A. Cucchiara (Penn State Univ.), E. Berger (Harvard Univ.) and Gemini Observatory/NSF/AURA
Evolution-Proof Insecticides May Stall Malaria Forever
Researchers are Finalists for Time's 'Top 100 Most Influential' List
Penn State University genomicists Webb Miller and Stephan C. Schuster, in front of the Roche / 454 Life Sciences' Genome Sequencer 20 System that was used to sequence mammoth mitochondrial DNA from the hair of 10 woolly mammoths. Credit: Lynn Tomsho, Penn State
Hundreds of Natural-Selection Studies Could be Wrong, Study Demonstrates
The image depicts the structure of the bovine rhodopsin protein. The blue circles represent amino acid sites that have undergone natural selection as determined through experiments, while the red circles represent amino acid sites that have undergone natural selection as determined through statistical analyses. Credit: Masafumi Nozawa, Penn State (Adapted from Yokoyama et al. 2008 PNAS)
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